摘要
【目的】筛选适宜的桃抗重茬砧木。【方法】以1年生盆栽7-12-3砧、毛桃砧、中桃抗砧、红叶砧和ZA砧幼苗为试材,将其分别定植在重茬土和园土中,定期测定幼苗的株高、干径、新梢直径、长度、叶面积、叶绿素相对含量、叶片净光合速率、叶绿素荧光参数等指标。【结果】重茬土对不同砧木品种(系)幼苗的植株生长量、叶面积、叶绿素相对含量、叶片净光合速率和叶绿素荧光参数均有不同程度的抑制作用。其中,7-12-3砧幼苗在不同土壤中的生长量差异不显著,中桃抗砧幼苗的株高和干径在不同土壤中的生长量差异不显著,红叶砧幼苗在不同土壤中生长量差异显著,毛桃砧和ZA砧幼苗在重茬土处理的后期陆续全部死亡。重茬土对不同砧木品种(系)幼苗的叶绿素荧光参数有不同的影响,重茬土对7-12-3砧、中桃抗砧幼苗的PSⅡ实际光合效率和PSⅡ最大量子效率的影响不大,这2个品种(系)幼苗的非光化学荧光猝灭系数和光化学荧光猝灭系数在2种土壤处理中差异不显著。采用主成分分析法,对5种砧木品种(系)幼苗的抗重茬能力进行综合评价,根据抗重茬能力由强到弱排序依次为中桃抗砧、7-12-3砧、红叶砧、毛桃砧、ZA砧。【结论】在更新桃老果园时,中桃抗砧和7-12-3砧可以作为首选桃砧木。
【Objective】To screen suitable peach rootstocks resistant to replant disease.【Method】The one-year-old potted plants including 7-12-3 rootstock,wild peach rootstock,Chinese peach resistant rootstock(CPR rootstock),red leaf rootstock,and ZA rootstock were used as test materials.The peach rootstocks were planted in continuous cropping soil and garden soil,respectively.The height,trunk diameter,new shoot length,new shoot diameter,leaf area and relative chlorophyll content(SPAD),the leaf net photosynthetic rate,the chlorophyll fluorescence parameters of peach rootstock seedlings were measured.【Result】The growth of different rootstocks was inhibited in the continuously cropped soil,including plant growth,leaf area,SPAD,net photosynthetic rate,chlorophyll fluorescence.Among them,there was no significant difference between the growths of 7-12-3 in different soils.There was no significant difference between the height and diameter of Chinese peach resistance rootstock in different soils.The growth of red-leaf rootstock was significantly different in different soils.Wild peach and ZA were both succumbed to adverse conditions in the later period of the continuous cropping soil.Continuous cropping soil had different effects on the chlorophyll fluorescence parameters of seedlings from different rootstock varieties(lines).The effects of continuous cropping soil on the actual photosynthetic efficiency of PS Ⅱ and the maximum quantum efficiency of PS Ⅱ in 7-12-3 rootstock and CPR rootstock seedlings were not significant.For these two varieties(lines),the non-photochemical quenching coefficient and photochemical quenching coefficient showed no significant difference between the two soil treatments.The comprehensive evaluation of the ability of several rootstocks to resist replanting was conducted by using principal component analysis.Based on their resistance capability,the ranking from strongest to weakest was as follows:CPR rootstock,7-12-3 rootstock,red leaf rootstock,wild peach rootstock,ZA rootstock.【Conclusion】The CPR rootstock and 7-12-3 rootstock can be used as the preferred rootstock varieties(lines)for the renovation of aging peach orchards.
作者
刘丽
魏志峰
钟林炳
石彩云
杨天意
董聪颖
孙世航
高登涛
LIU Li;WEI Zhifeng;ZHONG Linbing;SHI Caiyun;YANG Tianyi;DONG Congying;SUN Shihang;GAO Dengtao(Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,Henan,China;Zhongyuan Research Center,Chinese Academy of Agricultural Sciences,Xinxiang 453314,Henan,China;Tonglu County Agricultural Technology Extension Center,Hangzhou 311500,Zhejiang,China;Western Agricultural Research Center,Chinese Academy of Agricultural Sciences,Changji 831100,Xinjiang,China)
出处
《经济林研究》
北大核心
2025年第3期68-81,共14页
Non-wood Forest Research
基金
河南省重大公益科技专项(201300110500)
中国农业科学院科技创新工程专项经费项目(CAAS-ASTIP-2023-ZFRI)
桐庐县桃产业关键技术提升与创新。
关键词
桃砧木
重茬土
叶绿素荧光参数
peach rootstock
continuous cropping soil
chlorophyll fluorescence parameter
作者简介
第一作者:刘丽(liuli03@caas.cn),副研究员,硕士;通信作者:高登涛(Gaodengtao@caas.cn),副研究员,博士。
